Structures for coupling and grounding a circuit board in a plasma display device
a plasma display device and circuit board technology, applied in the direction of printed circuit assembling, coupling device connection, gas-filled discharge tube, etc., can solve the problems of poor grounding, loose bolts, damage or distortion of circuit boards, etc., to achieve stable fixation of circuit boards and effective grounding of circuit boards
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[0029]Shown in FIG. 1 is a plurality of soldering units 42 for grounding formed around a coupling hole 41 for bolt member 5. Circuit board 4 is grounded to a chassis base 3 through a boss 31 as shown in FIGS. 1 and 2.
[0030]The soldering units 42 penetrate circuit board 4 as shown in FIG. 2. In general, the circuit board 4 has a multi-layered structure, and a plurality of circuit ground wires 43 are built-in the cross section of the board. The soldering units 42 penetrate the ground wires 43, and upper end portions of the soldering units 42 are exposed on outer upper side of the circuit board 4.
[0031]As shown in FIG. 2, the head of the coupling bolt member 5 contacts the soldering units 42 to form a ground. That is, the ground wires 43 of the circuit board 4 are grounded to the chassis base 3 through the soldering units 42 and the bolt member 5.
[0032]In the above grounding structure, however, since the soldering units 42 protrude on the upper surface of the circuit board 4, the bolt ...
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